Method for controlling access to and segregating dispensed items

ABSTRACT

A method for controlling access to and segregating items dispensed from a vending machine having a stock of said items, said method comprising:
     vending an item only when a control procedure is satisfied; storing a record indicating said vended item has been dispensed;   if said vended item is not distributable to an authorized recipient; quarantining said vended item including inserting said vended item into a port on an exterior of said vending machine that conveys said inserted vended item to a secure repository in the interior of said machine; and updating said record to indicate said vended item has been returned to said machine.

RELATED APPLICATIONS

This application is a continuation-in-part of and claims priority ofU.S. patent application Ser. No. 11/476,220 filed Jun. 27, 2006 now U.S.Pat. No. 7,483,766 and U.S. patent application Ser. No. 11/820,564 filedJun. 21, 2007, the entire disclosures of which are hereby incorporatedby reference as if being set forth in their entireties herein.

FIELD OF THE INVENTION

In general, the present invention relates to systems and methods thatare used to control access to and convey pharmaceuticals in an automatedmanner and that safeguards against prescription fraud, preparation errorand control and segregation of undistributed items.

BACKGROUND

When a person is sick, they commonly use the services of a professionalhealthcare provider. In the standard course of operation, healthcareproviders regularly examine and diagnose patients in their offices.Typically, a sick patient will meet with the healthcare provider inhis/her office. The healthcare provider will diagnose the illness andsuggest a course of action to treat the illness. Often, the suggestedcourse of action involves the taking of a medication. If the selectedmedication is a controlled pharmaceutical, the healthcare providerwrites a prescription for the patient. The patient takes theprescription to a pharmacy, wherein a pharmacist fills the prescription.As such, sick patients must proceed through a two-step process beforethey receive medication for their ailment. The patient must first visitwith a healthcare provider to obtain a prescription. The patient mustthen visit with a pharmacist to have the prescription filled.

The two-step process of obtaining medication for an ailment presentsmany problems for a patient. The obvious problem is one ofinconvenience. It takes time to visit both a physician's office and apharmacy. It also takes time for a pharmacy to fill a prescription.Consequently, there can be a delay of many hours between when aphysician hands a patient a prescription for a medication and the timethat the patient has that medication in hand.

Furthermore, just because a patient is given a prescription does notmean that the patient will fill the prescription. A patient may believethat the physician is wrong in their diagnosis. Alternatively, a patientmay procrastinate, hoping the aliment will pass without medication. Apatient may also lose the prescription, forget about the prescription orpurposely not fill the prescription for a variety of financial,religious and/or personal reasons.

The other problems associated with the two-step process of receivingmedications are much less obvious, but no less important. When a patientarrives at a pharmacy, the patient must hand the pharmacist theprescription. The pharmacist must assume that the prescription is properfor both the patient and the illness being treated. In other words, thepharmacist must assume that the doctor did not make any error in writingthe prescription and has handed the correct prescription to the correctpatient. The pharmacist must then decipher the physician's handwritingand understand what has been prescribed in what amounts. If thepharmacist misreads the prescription in any way, the prescription willbe incorrectly prepared.

Assuming the physician did not err in issuing the prescription and thepharmacist did not err in reading the prescription, the pharmacist mustthen properly fill the prescription and label the prescription. If thepharmacist errs in either filling or labeling the prescription, thepatient may take the wrong medication or may take the right medication,but the wrong dosage. The patient may also be given the propermedication, in the proper dosage, but with incorrect dosinginstructions.

Finally, once a prescription is prepared and labeled, it must be givento the correct patient. Most pharmacies do not ask to see identificationfrom patients. The prescription is often just handed to the first personwho asks for the prescription and pays for the prescription.

Most patients assume that the prescription given to them at the pharmacyis correct. If a patient is handed the wrong prescription, there is agood chance that the patient will take that medication without everreading the label on the bottle.

In addition to all the problems that may accidentally occur intraditional systems, many people also attempt fraud to acquirepharmaceutical prescriptions. Such people take advantage of the manyproblems of the system to forge, falsify, and steal pharmaceuticals.

It will therefore be understood that in order for a person to properlyreceive a prescription, there must be no human error in writing,handling, filling, labeling and delivering the prescription. Althoughthe system works correctly the vast majority of the time, human errorwill always be present. Thousands of such errors occur every year. Theseerrors could result, either directly or indirectly, in deaths, permanentinjury, illness, harmful drug interactions and untreated disease. Thiscreates liabilities to pharmacists and doctors resulting in increasedhealthcare costs for everyone.

Despite training and safety protocols, the only way to reduce humanerror is to minimize the points in the system where human error canoccur. To prevent physicians from writing illegible prescriptions, manyelectronic prescription systems have been created that electronicallytransmit prescriptions to pharmacies. Such prior art systems areexemplified by U.S. Pat. No. 6,067,524 to Byerly, entitled Method AndSystem For Automatically Generating Advisory Information For PharmacyPatients Along With Normally Transmitted Data; and U.S. Pat. No.5,883,370 to Walker, entitled Automated Method For Filling DrugPrescriptions.

A common place where errors occur is in the filling, labeling anddelivery of the prescription by the pharmacist. One way to minimizehuman error in these processes is to create automated machines thatconvey prepackaged pharmaceuticals.

There are many ways to convey prepackaged goods to the public usingautomation. A common way to convey prepackaged goods is through the useof vending machines. Vending machines can vend any product that isplaced into the vending machines, including prepackaged pharmaceuticals.Vending machines can also be left accessible to the public at all times,thereby enabling a person to fill a prescription at their ownconvenience. Vending machines specifically configured to vendprescription pharmaceuticals are exemplified by U.S. Pat. No. 5,797,515,to Liff, entitled Method For Controlling A Drug Dispensing System.

Replacing a human pharmacist with an automated vending machine presentsits own set of problems. First, the vending machine must be manuallyfilled with the proper medications. Human error may cause the vendingmachine to be incorrectly filled. Furthermore, as most everyone hasexperienced, vending machines do not always vend properly. Merchandisegets jammed. Sometimes nothing vends from the machine, sometimes twoproducts accidentally vend from the machine.

A need therefore exists for an improved prescription preparation andconveying system that eliminates as much human error as possible byusing automating processes. A need also exists for an improved automatedconveying system for prescription pharmaceuticals that safeguardsagainst many errors that are prevalent in prior art automated systems.

SUMMARY

In one embodiment, a system for controlling access to and segregatingdispensable items comprises a vending machine that contains thedispensable items to be vended. The vending machine includes an accesscontrol mechanism responsive to selection of one of the dispensableitems for causing the vending machine to activate and vend the selecteditem. Transaction information associated with each of the vended itemsis stored in memory. The vending machine further includes a port on anexterior of the machine and adapted to receive items previously vendedfrom the vending machine for return. A repository is located on theinterior of the machine and operably connected to the port forquarantining the returned items, whereby the returned items areseparated from the items to be vended. A sensor may be provided forsensing the returned items and causing the system to update transactioninformation to indicate that the sensed item has been returned to themachine.

In one embodiment, a method for controlling access to and segregatingitems dispensed from a vending machine having a stock of said items,said method comprising: vending an item only when a control procedure issatisfied; storing a record indicating said vended item has beendispensed; if said vended item is not distributable to an authorizedrecipient; quarantining said vended item including inserting said vendeditem into a port on an exterior of said vending machine that conveyssaid inserted vended item to a secure repository in the interior of saidmachine; and updating said record to indicate said vended item has beenreturned to said machine.

Upon the completion of a patient's diagnosis, a physician may prescribea regulated pharmaceutical. If the pharmaceutical is present within thevending machine, the physician enters the prescription into a terminal.The prescription is read by a processor such as the central processingunit that controls the vending machine. The central processing unitidentifies the location of the pharmaceutical in the vending machine andawaits a proper vending code.

In an exemplary embodiment of the present invention, the physician handsthe patient an electronic key card. The key card is encoded with thevending code needed to activate the vending machine. The patient carriesthe key card to the vending machine. The key card is read by the datareading unit. If the code on the key card matches the prescription codepreviously entered by a physician, the vending machine vends theprepackaged unit-of-use.

Through the use of sensors and label codes, the system verifies that theprepackaged unit-of-use has correctly vended from the machine and thatthe prepackaged unit-of-use is correct.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present invention, reference is madeto the following description of an exemplary embodiment thereof,considered in conjunction with the accompanying drawings, in which:

FIG. 1 is an exemplary schematic representation of a physician's officecontaining the present invention system;

FIG. 2 is a block diagram showing another part of the methodology usedby the present invention system;

FIG. 3 is a block diagram showing yet another part of the methodologyused by the present invention system;

FIG. 4 shows an exemplary printout created by the present inventionsystem and shown with a prepackaged pharmaceutical container;

FIG. 5 is a block diagram showing yet another part of the methodologyused by the present invention system;

FIGS. 6 a and 6 b are schematic representations showing major componentsof a vending machine useful for implementing aspects of the presentinvention according to an exemplary embodiment.

FIG. 7 is an exemplary process flow for implementing quarantine aspectsof the present invention.

DETAILED DESCRIPTION

Before embarking on a detailed discussion the following should beunderstood. The present invention system and method can be used toconvey and control access to dispensable items or materials other thanpharmaceuticals. For example, it is contemplated that variousregulatable substances may be dispensed including but not limited toexpensive items, hazardous materials, or other substances that requirecontrol or regulation. For example, the method and system of the presentinvention can be utilized in a factory setting where industrial toolssuch as expensive work tools, bits or dies are controlled in theirdelivery to the factory floor. However, the present invention isparticularly well suited for use in the prescribing, conveying andcontrolling of prescription pharmaceuticals. Accordingly, the presentinvention apparatus, system and method is described for use in conveyingprescription pharmaceuticals in order to set forth the best modecontemplated for the invention.

Referring to FIG. 1, a schematic of a physician's office 10 is shownthat contains an exemplary embodiment of the present invention system.The physician's office 10 includes an examination room 12 and an officearea 14. The examination room 12 is the room where physicians physicallyexamine patients. The office area 14 typically is a restricted area thatis only used by office personnel. The office area 14 usually has acountertop 16 that separates the office area 14 from public areas usedby the coming and going patients.

The present invention system utilizes a prescription fulfillment orprescription vending machine 20 to store prepackaged items or units ofuse. A unit-of-use may be a bottle, jar, vial, tube, syringe, package orother receptacle that is prefilled with pharmaceutical. In oneembodiment, the unit of use is prefilled in a volume large enough tocomplete a course of treatment. The vending machine 20 is preferablykept in the restricted office area 14. However, the vending machine 20may be present in public areas for direct access by patients.

The vending machine 20 contains a stock of prepackaged units of use 22.The prepackaged units of use 22 kept in the vending machine 20 dependupon the type of physician's office. In a pediatric physician's office,the vending machine 20 might, among other things, contain variousantibiotics in dosages suitable for children of different weights andages. In a geriatric physician's office, the vending machine mightcontain, among other things, prepackaged units of use for arthritis andhypertension. It will therefore be understood that the vending machine20 will be stocked with the prepackaged units of use 22 that are mosttypically prescribed by the physicians in that office.

The vending machine 20 contains a central processing unit 24. Thecentral processing unit 24 controls the vending mechanisms of thevending machine 20. The central processing unit 24 also keeps track ofthe stock inventory carried and conveyed by the vending machine 20.

A data input terminal 26 is provided. Although the data input terminal26 can be located anywhere, it is preferred that each of the examinationrooms 12 be provided with a data input terminal 26. The data inputterminal 26 can be a panel that is mounted to a wall, a tabletopcomputer terminal or a portable handheld device. Each of the data inputterminals 26 is coupled to the central processing unit 24 using either ahard wire or wireless (e.g. radio frequency) network.

In one configuration, each of the data input terminals 26 can only beactivated by an authorized individual (e.g. authorized physician) fromthat office. The data input terminal 26 may be activated by the physicalinput of an access code or password. The data input terminal 26 may alsobe activated by swiping an identification card or providing somebiometric data, such as a fingerprint. However, in the exemplaryembodiment, the data input terminal 26 is activated by a radio frequencyidentification (RFID) tag that is carried by the physician. In thismanner, the electronic input interface will automatically activate asthe physician approaches that device.

The data input terminal 26 contains a screen. Once activated, thephysician can enter a prescription for a pharmaceutical. The number ofprepackaged units of use 22 held within the vending machine 20 arelimited by the capacity of the vending machine 20. Thus, in an exemplaryembodiment, the vending machine 20 is filled with a selection chosen bythe health care professionals of that office that are best suited forthe patients served by that practice. The selections offered by thevending machine 20 can be presented to the physician on the data inputterminal 26 in the form of a selection menu. The physician thereforeneeds only select one of the menu choices to complete a prescription.However, the data input terminal 26 also enables a physician to customenter a prescription for any pharmaceutical, even if that pharmaceuticalis not carried by the vending machine 20. If a particular pharmaceuticalis not contained in the vending machine 20, a printed prescription willprint for the patient to take to a pharmacy in the traditional manner.

Key card sets may also be provided. Each of the key card sets containstwo key cards 28 that are electronically matched. The key cards 28 arepreferably kept secure prior to use. The key cards 28 are therefore heldby the physician or are kept in a secure manner near the data inputterminal 26 in the examination room 12. Each of the key cards 28 in eachkey card set contains a vending code. In a preferred embodiment, thevending code is contained in an RFID tag that is present on each of thekey cards 28. The data input terminal 26 can therefore passively readthe vending code from the key card 28 just by holding the key card 28proximate the data input terminal 26 when prompted by the data inputterminal.

It will be understood that although an RFID tag is preferred, thevending code can be read in other manners. For instance, the key card 28may contain a magnetic strip, barcode, digital data storage chip,magnetic storage disk, optical storage disk or other readable datasequence that can read to the data input terminal 26. Alternatively, thekey card 28 may just contain a printed vending code that can be manuallyentered into the data input terminal 26.

Regardless to the method of data transfer, what is of importance is thatthe vending code is read by the data input terminal 26. That vendingcode becomes associated with the prescription data that was just enteredinto the data input terminal.

Once prescription data and a corresponding vending code are entered intothe data input terminal 26, both the prescription data and the vendingcode are automatically forwarded to the central processing unit 24 inthe vending machine 20.

The central processing unit 24 in the vending machine 20 is coupled to aprinter 30. The printer 30 can be a tabletop printer. However, in theshown embodiment, the printer 30 is contained within the structure ofthe vending machine 20.

A modem 32 is coupled to the central processing unit 24. The modem 32enables the central processing unit 24 to communicate with a remotepharmacy source 33, via some existing telecommunications network. Inthis manner, the central processing unit 24 can keep the remote pharmacysource 33 aware of the inventory and age of the prepackaged units of use22 within the vending machine 20. Periodically, or as needed, the remotepharmacy source 33 will send a person to restock, replace or remove theprepackaged units of use 22 from the vending machine 20.

The central processing unit 24 also communicates with the physician'selectronic medical record system, for example, via an office computer34. In this manner, when a prescription is written for a particularpatient, that information may be saved to the medical records of thatpatient.

Having described an exemplary physical layout of the present inventionsystem, the system's method of operation can now be described. Referringto FIG. 1 in conjunction with FIG. 2, it can be seen that the presentinvention system may be contained within a physician's office 10 orother healthcare facility, such as a hospital. A patient is taken to anexamination room 12, wherein the patient is examined by a physician. SeeBlock 40. The physician diagnoses the cause of illness in the patientand conceives of a treatment. See Block 42. If the treatment includesthe need for a prescription, the physician activates the data inputterminal 26. See Block 44. Using the data input terminal 26, thephysician enters a prescription. See Block 46. The physician also takesa key card set. The physician reads the vending code from one key card28 into the data input interface so that the vending code becomesassociated with the prescription data. See Block 48. The second key card28 is handed to the patient for later use at the vending machine 20. SeeBlock 50.

The prescription information and vending code that were entered into thedata input terminal 26 are forwarded to the central processing unit 24.See Block 52.

Referring to FIG. 3 in conjunction with FIG. 1, it will be understoodthat once the central processing unit 24 receives prescription data fromthe data input terminal 26, it deducts the prescription from theinventory of the vending machine 20, even though the vending machine 20has not yielded the prescription. The central processing unit 24immediately updates inventory information, as is indicated by Block 54.In this manner, if another physician in another office were to prescribethat same medication, the physician would know if that medication wereavailable within the vending machine 20 for dispensing.

In the illustrated embodiment, the vending machine 20 contains a datareading unit 36. Such a location is exemplary, and it will be understoodthat the data reading unit can be remote from vending machine 20provided it remains in communication with the vending machine 20. Thedata reading unit 36 can read the key card 28 of the patient. The typeof data reading unit 36 depends upon the type of key card 28 being used.For example, if the key card 28 is a card with a magnetic strip, thedata reading unit 36 is a card swipe reader. In the preferredembodiment, the key card 28 contains an RFID tag. As such, the datareading unit 26 would be an RFID reader. Regardless, what is ofimportance is that the data reading unit 36 is capable of reading datafrom the key card 28.

A patient brings the key card 28 to the vending machine 20 or hands itto an office worker who brings it to the vending machine 20. See Block58. The key card 28 is then read by the data reading unit 36. See Block60. Once the key card 28 is read, the central processing unit 24 matchesthe vending code from the key card 28 to the vending code that waspreviously received with the prescription data from the data inputterminal 26. See Block 62. If the vending codes match, the centralprocessing unit 24 then enables the vending machine 20 and vends theappropriate prepackaged unit-of-use 22. See Blocks 64 and 66.

It will therefore be understood that the vending machine 20 does nothave selection buttons in the manner of a traditional vending machine.Rather, the vending machine 20 automatically vends only after the keycard 28 is read by the vending machine 20 and compared to a vendingcode. The data in the vending code controls which of the prepackagedpharmaceuticals will be vended when the vending machine 20 is activated.The chance of an incorrect selection being made by human error istherefore eliminated.

The need for the proper key card can be circumvented by an authorizedperson. Using a master key card, or the key card that was kept by thephysician, a physician or a member of the physician's staff can causethe vending machine 20 to vend. See Block 69. Alternatively, a physiciancan over-ride the requirement of a key card when the physician enters aprescription into the system. In this manner, a prepackaged unit-of-use22 can be retrieved in a more direct fashion for a patient from thevending machine 22. This may be helpful in various circumstances,including but not limited to a patient who is, for example homebound orotherwise unable to come to the office.

Since the vending machine 20 is automatically activated by the vendingcode (e.g. on a key card 28) there is no concern about a person pressingthe wrong selection buttons on vending machine 20 and/or receiving thewrong medication. Accordingly, the only way a patient can receive theincorrect prescription is if the vending machine 20 is filledincorrectly or fails to vend properly.

A sensor 37 can be placed in the receiving tray 38 of the vendingmachine 20. The sensor 37 is coupled to the central processing unit 24.As is indicated by Block 68, the sensor 37 detects whether or not aprepackaged pharmaceutical 22 has been conveyed into the receiving tray38 after the vending machine 20 has vended. If no prepackagedunit-of-use 22 is detected, it can be assumed that the prepackagedunit-of-use 22 got stuck in the vending machine 22 or the vendingmachine 22 was not filled properly and vended a blank space. If thecentral processing unit 24 detects any such vending error, the centralprocessing unit 24 can alert the office staff and alert the operator ofthe vending machine. See Block 70. The vending machine 20 may alsoautomatically deactivate to ensure that a subsequent patient does notreceive the prepackaged unit-of-use that may be only temporarily stuckwithin the vending machine. See Block 72.

The printer 30 is connected to the central processing unit 24. Theprinter 30 can be located within the vending machine 20 or at someposition close to the vending machine 20. Every time the vending machine20 is activated by the central processing unit 24, the centralprocessing unit 24 sends a print job to the printer. The print jobcorresponds to the pharmaceutical being conveyed. The print job, onceprinted, provides information about the pharmaceutical, such as itsinstructions for use and possible side effects. The printing alsocontains identification information that helps ensure that thepharmaceutical that was vended was the pharmaceutical that was intended.

Referring to FIG. 4, an exemplary embodiment of a printout 80 is shown.The printout 80 has an information section 82 that preferably containssome warnings and/or technical information about the pharmaceuticalbeing conveyed. In one embodiment, the printout 80 also has a picturesection 84 that shows color pictures of the pharmaceutical beingconveyed. More than one picture may be provided if the pharmaceutical ismanufactured by more than one company and comes in different sizes,shapes and/or colors.

A prepackaged pharmaceutical container 86 is also shown in FIG. 4. Whensuch a prepackaged pharmaceutical container 86 vends from the vendingmachine, it contains a removable label 88. The removable label 88identifies the pharmaceutical being in the prepackaged container 86 andalso provides a code pattern 90 that is unique to that type ofprepackaged unit-of-use. The code pattern 90 can be a color code, anumerical code, graphic code or any other visual code. In the exemplaryembodiment, the code pattern consists of a color field 91 and analignment strip 93.

The printout contains a tear-away section 95. A label image 92 isprinted onto the tear-away section 95. The label image 92 contains acode pattern 94 that corresponds to the code pattern 90 on the removablelabel 88 from the prepackaged container 86. The label image 92 alsocontains a color field 99 and an alignment strip 101.

A label target 103 is printed either immediately above or below thelabel image 92. The label target 103 shows a person where to place theremovable label 88 from the prepackaged container 86.

The removable label 88 is peeled off of the prepackaged container 86 andis applied over the label target 103. Once in this position, the colorfield 91 of the removable label 88 should be the same color as the colorfield 99 of the label image 92. Furthermore, the alignment strip 93 ofthe removable label 88 should align with the alignment strip 101 on thelabel image 92.

By comparing the removable label 88 to the label 92, two goals areachieved. First, by checking if the code patterns 90, 94 match, it canbe seen that the proper prepackaged pharmaceutical container 86 wasvended from the vending machine 20. This safeguards against any humanerror that may have occurred during the filling of the vending machine20. Second, the tear-away section 95 of the printout is removed and keptby the office staff, thereby providing a permanent record of what wasvended from the vending machine 20.

The vending machine 20 is not an ordinary vending machine in the sensethat it does not vend for money and it is not a self-contained system.Rather, the vending machine 20 is used as the conveying mechanism for alarger system that is integrated throughout the physician's office.

Referring to FIG. 5 in conjunction with FIG. 1, it will be understoodthat as the vending machine 20 vends, the central processing unit 24updates the status of the vending machine 20. See Blocks 102 and 104.Information about what was vended and for whom is communicated to themedical record software being run by the computer network in thephysician's office. See Block 106. In this manner, a patient's recordsare automatically updated with the prescription ordered by the physicianand the medication that was conveyed.

The central processing unit 24 also forwards update information to theremote pharmacy source 33 who is responsible for filling and maintainingthe vending machine 20. See Block 108. In this manner, the remotepharmacy source 33 can periodically come to fill the vending machine 20before the vending machine 20 ever runs out of a particular type ofpharmaceutical.

Referring now to FIG. 6 a, there is shown an exemplary embodiment 200 ofa vending machine useful for carrying out aspects of the presentinvention. Like reference numerals have been used to indicate likeparts. As shown in the schematic front view of FIG. 6 a, vending machine200 operates as a prescription fulfillment machine for dispensingprepackaged units of use, and further operates to control and quarantinedispensed prepackaged units of use in a secure manner in the event thata dispensed unit cannot be delivered to an authorized recipient. Vendingmachine 200 includes a hinged exterior door 207 having a first outerportion 207 a and a second inner portion 207 b (FIG. 6 b) opposite thefirst outer portion. Two sidewalls 201 and 202, a top wall 203, a bottomwall 204 and a back wall 205 together with the exterior door form anenclosure or cabinet space. Exterior door 207 is hingedly coupled toside wall 201. Vending machine 200 further includes an interiorinsulating door 206 (see FIG. 6 b). The exterior door 207 has a securitylock system with multiple different locking points in the sidewall. Whenclosed, the exterior door 207 forms an airtight enclosure within themachine 200. The exterior door comprises a solid panel with theexception of an opening or port 510, output dispensing or retrievingtray 38, and optional slot 2072 and reader 36 disposed on the outersurface of door 207. Vending machine 200 includes a port 510 disposed onthe exterior door 207 according to an aspect of the present invention.Port 510 is adapted to be sufficiently large to allow depositing of allprepackaged inventory units of use 22 (see FIG. 1) that are dispensedfrom the vending machine 200 (e.g. via tray 38) to be received into port510, but not so large as to allow an individual unauthorized physicalaccess to the interior of the cabinet via the port 510. In this manner,the contents deposited into port 510 can be reached only by opening theexterior door 207. Although the port 510 is shown as circular, it is notlimited to that shape.

Referring now to FIG. 6 b in conjunction with FIG. 6 a, a conduit 710such as a flexible tube or other conveying system has a first endconnected to the port 510 on the inner portion 207 b of door 207 and isadapted to carry or convey an inventory unit 22 inserted into port 510from outside the machine, to a quarantine receptacle 810 on the interiorof the vending machine 200. In this manner, the item returned to thevending machine cannot be removed except by an individual withauthorized access to the interior of the vending machine cabinet 200. Inan exemplary embodiment, an insulating door or interior door 206 ispositioned between the exterior door 207 and houses the inventory unitsto be dispensed (not shown) in FIG. 6 b. A portion 38 a of productretrieval tray may be mounted on the inside of the exterior door 207wherein a product is retrieved from the cabinet and is passed throughthe interior insulating door 206 via a product exit door 222 into theproduct retrieval tray 38 a that opens to the exterior 207 a of door207. The retrieved product can be picked from outside the exterior door207 from the product retrieval tray 38.

An electronic control unit 212 is mounted on the inside of the exteriordoor 207. The control unit 212 generally controls the functionalities ofthe vending machine 200. A keypad 220 is installed on the inside of theexterior door 207. The keypad can be used to enter commands for theelectronic control unit 212. Below the floor of the interior door 206lies a compartment area 801 segregated from both the dispensable itemsbehind interior door 206 that contains quarantine receptacle 810. Inthis manner, the quarantine receptacle 810 may be separately secured toprovide enhanced protection and security from unauthorized access whileproviding clear segregation of mis-vended items.

Referring again to FIGS. 6 a and 6 b, in an exemplary embodiment, theport 510 is located in the upper portion 2071 of the exterior door 207and the quarantine receptacle 810 is located in the lower portion 801 ofthe interior of the vending machine. The conduit may be a flexible tubearranged to convey (e.g. via gravity, pressure, etc.) the inventory unitfrom port 510 to receptacle 810 by way of example only. In this manner,the returned item is segregated from the other inventory items containedin the vending machine 200 and can be accessed only by opening door 207(and optional compartment 800 interior door).

A server 820 having a central processing unit is positioned below thecabinet within the compartment area. A server may be any computingdevice capable of storing and executing a stored set of instructions forcontrolling the operation of the machine 200. The server 820 isconnected to the electronic control unit 212. A power supply is alsoinstalled which is connected to the server. The machine 200 may furtherinclude a surge protector/power strip to protect the electroniccomponents in the machine 200. A wireless router may be installed belowthe cabinet within compartment 801. A wireless router is capable ofreceiving information from a remote unit as well as transmittinginformation from the server 820.

In a further exemplary embodiment, vending machine 200 may optionallyinclude a slot 2072 formed in exterior door 207 and a corresponding tray2073 connected to the inner portion of the door 207 communicating withslot 2072. When a “mis-vend” has occurred, a paper form may be filledout that lists the specific inventory item returned, and additionalrelevant information such as the date and the transaction details. Thepaper sheet may then be deposited into the slot 2072 adapted for capturein tray 2073 within the interior of the machine 200. As discussed above,the inventory item is returned to and quarantined in the machine viadepositing the inventory item 22 in port 510 for capture in receptacle810 within the interior of the machine. In another embodiment, it iscontemplated that the paper sheet may also be deposited via port 510,thereby eliminating the need for slot 2072 and tray 2073.

In another embodiment, the patient information sheet that is printed atthe time of delivery is used. As previously described with reference toFIG. 4, the information sheet includes a perforated section that isremovable at the bottom of the sheet. The sheet contains all of thepersonal information pertaining to this transaction. This section isremoved and discarded to protect patient security. The top sectionincludes only the general information on the item that was intended tobe delivered to the patient. It also has printed on it an alpha numericcode which is specific to the transaction. This section of the patientinformation sheet may be deposited in the secure receptacle (e.g. port510 or slot 2072) in the vending cabinet.

In yet another embodiment of the present invention, each of the unit ofuse packages that constitute the inventory contained within thecontrolled access cabinet have RFID tags attached thereto. As previouslydiscussed, the tags operate to identify the pedigree and essentialinformation about each specific unit of use package. In the event that aunit of use package needs to be returned to the quarantine area of thecabinet, an RFID reader 900 (see FIG. 6 b), located within the interiorof the cabinet designed for quarantining such items, identifies thetransaction. The RFID reader may be located at various places, such asat or near the entrance of port 510 in the front of the machine, alongthe conduit 710 or at the receptacle 810. Such positioning may be basedon a variety of factors, including but not limited to the configurationof the cabinet, in order to prevent cross talk between other RFIDreaders within the cabinet (such as reader 38).

In one implementation, vending machine 200 may be adapted or modifiedfrom a commercial vending machine such as Jofemar Multiplus unit toinclude the capabilities and functionalities described herein. Suchmodifications may include, for example, removal of all internal displayunits from the upper section of the machine and the addition of a solidpanel (e.g. 17 inch by 28 inch panel to the interior of the front uppersection; and forming a slot (e.g. about 3 inch by 6 inch aperture) inthe upper section of the front panel to allow misvends to be depositedto the quarantine receptacle. Other openings, except for the productdispensing output, are covered on the front panel of the display. Thecash dispensing unit is removed from the machine and associated openingalong with the key pad and coin slot on the front of the machine. Asmall port on the rear surface of the machine may be formed to allowcabling to exit the machine.

In the interior of the machine, a server is mounted and configured inthe lower or bottom section of the cabinet with appropriate cableconnectivity including connection to the control panel to enableappropriate communications and interfacing with the computer and memorystorage devices, cable/server connections, and appropriate connectivitywith one or more power supplies (e.g. UPS power supply), surgeprotector/power strips, and mounting of a USB hub and one or morewireless routers. As discussed herein, a conduit and repository is addedto the machine to enable misvended items to be quarantined.

Installation of one or more RF ID readers and appropriatesoftware/hardware/firmware is implemented within the machine forenabling reading, communicating, storing, and updating informationassociated with the vended items.

Referring now to FIG. 7 in conjunction with FIG. 6 a-6 b, in a systememploying RFID functionality, a previously vended unit 22 thatincorrectly delivered or mis-vended so as to be undistributable isinserted back into the machine via port 510 (block 700) for storage inquarantine receptacle 810 (block 702). The reader reads (block 704) thecode on the returned unit of use item and identifies the item that hasbeen returned to the quarantine area. The system central processing unitcompares that item to its transaction log and updates the memorylocation(s) (block 706) to indicate that the sensed item has beenreturned to the machine. In an exemplary embodiment, a systemtransaction log is updated so as to be marked as “returned andquarantined”. Once the transaction has been identified as having beenincorrectly delivered (i.e. mis-vended) from the inventory cabinet, thetransaction is entered into the system. An alert (block 708) may begenerated by the CPU so as to alert a remote pharmacy 33 (see FIG. 1) ora central order processing facility of the occurrence of a mis-vend.

As previously discussed, access to the system may be made via a personalidentifier card with barcode or magnetic strip identifier. In anotherembodiment, access is through a biometric identifier such as afingerprint reader, iris scanner, face recognition software or voiceidentification software, for example.

In the embodiment in which a paper form is created, or when patientinformation sheets are used, the office staff who completes the taskthen enters the information of the transaction into the informationsystem provided for tracking all of the transaction. The system thenremoves the transaction from the list of pending transactions and placesit instead in a “hold and retrieve” queue. When RFID is used, the readercauses the system to automatically recognize the returned item andprovides for the CPU to automatically remove the transaction from the“pending” queue to the “hold and retrieve” queue.

In one embodiment, an alert is also sent to the central order processingsystem so that the central office is made aware that there is an itemthat has been placed in the “hold and retrieve” queue and therefore,there is a package unit in the quarantine area of the cabinet.

When a new re-stocking order is generated for that specific cabinet, areport may be attached to the reorder listing the specific items thatcurrently exist inside the quarantine receptacle within the cabinet. Itis then the responsibility of the employee or representative whorestocks the unit to retrieve each item listed on the report and returnthem to the central warehouse. This allows for absolute controlledtracking of each of these transactions.

Hence, the present invention enables items that are delivered from acontrolled access inventory unit but cannot be properly delivered and/orutilized by an authorized recipient, to be quarantined in a securemanner, while providing monitoring of the transaction, recording andlogging of events and providing for a clear chain of custody toestablish ownership of that item.

Although the system and method of the present invention have beendescribed with respect to pharmaceuticals, various regulated substancesmay be dispensed including industrial tools such as expensive worktools, hazardous materials, or other substances that require control orregulation. For example, a method and system can be utilized in afactory setting where expensive tools, bits or dies are controlled intheir delivery to the factory floor. Remote order entry can becoordinated with delivery of the appropriate item from inventory to thecontrolled access point for pickup within the factory, therebystreamlining the process and reducing the time necessary for anindividual on the shop floor to leave his/her site and get theappropriate tool or item from central inventory storage.

Through embodiments of the present invention, the method and system asdescribed herein enable better monitoring and control of dispensableitems such as controlled or scheduled substances. Based on the use ofelectronic tags or personal identification mechanisms associated withthe dispensing of regulated substances, statistics regarding how andwhen substances are prescribed and dispensed may be collected. Thesestatistics can be used in determining insurance rates, identifyingpotential problems and for geographic and demographic studies, forexample.

It will be understood that the embodiments of the present inventionsystem illustrated and described herein are merely exemplary and that aperson skilled in the art can make many variations to the system. Allvariations of these components are intended to be included within thescope of the invention.

1. A method for controlling access to and segregating items dispensedfrom a vending machine having a stock of said items, said methodcomprising: vending an item only when a control procedure is satisfied;storing a record indicating said vended item has been dispensed;quarantining those vended items which are inserted into a port of saidvending machine that conveys said inserted vended item to a securerepository; updating said record to indicate said vended item has beenreturned to said secure repository; and providing a sheet containingidentifying information associated with said returned item and insertingsaid sheet through a slot on said machine for storage within saidmachine.
 2. A method for controlling access to and segregating itemsdispensed from a vending machine having a stock of said items, saidmethod comprising: vending an item only when a control procedure issatisfied; storing a record indicating said vended item has beendispensed; quarantining those vended items which are inserted into aport of said vending machine that conveys said inserted vended item to asecure repository; and updating said record to indicate said vended itemhas been returned to said secure repository, wherein said items compriseprepackaged pharmaceuticals.
 3. A method for controlling access to andsegregating items dispensed from a vending machine having a stock ofsaid items, said method comprising: vending an item only when a controlprocedure is satisfied; storing a record indicating said vended item hasbeen dispensed; quarantining those vended items which are inserted intoa port of said vending machine that conveys said inserted vended item toa secure repository; and updating said record to indicate said vendeditem has been returned to said secure repository.
 4. The method of claim3, further comprising sensing said vended item has been returned to saidsecure repository, wherein said updating of said record is responsive tosaid sensing.
 5. The method of claim 3, further comprising automaticallygenerating an alert signal to a central processing facility fornotifying of said returned vended item.
 6. The method of claim 3,wherein said secure repository is partitioned from said stock of itemsto be vended.
 7. The method of claim 3, wherein said control procedureincludes identifying an item to be vended through a data-input terminallocated remotely from said machine.
 8. The method of claim 3, furthercomprising the step of deactivating the vending machine upon adetermination that said item has failed to vend following satisfactionof said control procedure.
 9. The method of claim 3, wherein said itemscomprise controlled or regulated substances.
 10. The method of claim 3,wherein said items comprise machine tools.
 11. The method of claim 3,wherein said items comprise hazardous materials.